OK to be quite honest I’ve never heard of this before I started watching Lisa do her lives and show us her morning and nightly routine. I would say the proof is in the pudding., Lisa looks amazing and is nearly 60.. you can also do some research on your own as to the benefits and the history of this ancient Chinese medicinal tool. I can tell you from my own experience it’s really making a difference in the inflammation and puffiness in my face. I’ve been using it consistently 2x a day, i chill it in the fridge right next to my butter. It’s really an amazing facial massage and feels fantastic. You won’t be sorry you invested in a little self love.